In Polish, the object of a sentence uses the accusative case, and in this example the
word 'tea' 'is changed from the nominative herbata to the accusative case herbatę.

Gender

Nouns in many languages often have a gender. These are commonly masculine, feminine and neuter.

In some languages, the noun gender is normally obvious from the word ending (e.g. Spanish words ending in 'a' are almost always feminine.). In others, such as German,
the gender of each noun
has to be learnt. 'Der Wein' (the wine) is masculine but 'Das Bier' (the beer) is neuter.